Add missing call to my_inet_ntop() in Mod CP
Add missing CSS class to text input
Clean up Javascript
Add `overflow-y: scroll` to body

This change makes sure that even if there isn't a need for a scrollbar, it will show anyway to prevent the page from snapping between clicks.
Optimize PNG images

Simply, I sent these through optipng without affecting the color or color depth. This reduced the total file size by ~17%.